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This paper introduces LayerWeighted-GCN (LWG), a novel Graph Neural Network (GNN) model for fraud detection, along with a synthetic dataset named SIFT (Synthetic Insights for Fraudulent Transactions). The proposed approach integrates adaptive layer weighting, enabling the model to dynamically adjust the contribution of different GNN layers to better capture intricate transaction patterns. Additionally, the flexible architecture of LayerWeighted-GCN enhances its ability to model complex financial relationships, improving fraud detection accuracy and robustness. To evaluate its effectiveness, we compare LayerWeighted-GCN against classical machine learning models and traditional GNNs on the SIFT dataset. Experimental results demonstrate that LWG achieves higher accuracy than existing GNN-based models, outperforming state-of-the-art methods in fraud detection. Moreover, LWG effectively reduces false positive rates, making it a more reliable and adaptable solution for identifying fraudulent transactions. These findings highlight the model\u2019s efficiency and effectiveness, establishing it as a powerful tool for financial institutions to detect and prevent sophisticated fraudulent activities.<\/jats:p>","DOI":"10.1007\/s44230-025-00097-3","type":"journal-article","created":{"date-parts":[[2025,4,10]],"date-time":"2025-04-10T02:28:54Z","timestamp":1744252134000},"page":"181-195","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Detecting Fraudulent Transactions for Different Patterns in Financial Networks Using Layer Weigthed GCN"],"prefix":"10.1007","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0368-2097","authenticated-orcid":false,"given":"Shaziya","family":"Islam","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gagan","family":"Raj Gupta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Apu","family":"Chakraborty","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Santosh","family":"Singh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anisha","family":"Soni","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chhavi","family":"Patle","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,4,10]]},"reference":[{"key":"97_CR1","unstructured":"Money laundering. https:\/\/www.unodc.org\/unodc\/en\/money-laundering\/overview.html. 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